Prior to the 1980s, there were only six known Dubosq $10s -- two of which were impounded (one in the Smithsonian Institution, and the other in the collection of the Bank of California). In the mid-1980s, a pair were dug up in California, and another example was discovered in the wreckage of the S.S. Central America. Around 2010, a holed example was discovered in a box of California tokens. Today, the finest strictly original Dubosq $10 is a choice VF.
| Country | United States of America |
| Year | 1850 |
| Serie | Dubosq & Company |
| Denomination | G$10 |
| Mint | San Francisco |
| coinage-type | Pioneer & Territorial Gold |
| desg | MS |
| designer | James B. Longacre |
| edge | Reeded |
| material | Gold |
| mintage | 2 known |
| ngc-id | 5SJR |
| obverse-description | Liberty Head with DUBOSQ & Co. on diadem, 1850, 13 stars around |
| pcgs-link | 10176 |
| pcgs-number | 10176 |
| reverse-description | Federal eagle S.M.V. CALIFORNIA GOLD. FIVE D. |
| variety | Dubosq & Co. |
| variety-2 | K-1 |
| year-display | 1850 |